When a demonic pony comes to Ponyville, questions arise as to who the stallion is... and furthermore 'what' he is. As events unfold it is discovered that the legend of the Shadowmare race from ancient pony folklore is far from the truth. It is up to one of the two remaining Shadowmares to rise to the challenge and save the dying race from extermination. However, the only way to recover his full potential, Daemon, the last male Shadowmare in existence, must complete a daunting task... make friends with as many as he can. While making friends he also discovers something new to his battle hardened species... love.